In spiral galaxies,the size of the central bulge is correlated with the
A) tightness of the spiral arms.
B) luminosity of the galaxy.
C) age of the galaxy.
D) thickness of the disk.

Question

Quizplus · Accepted Answer

The size of the central bulge in spiral galaxies is correlated with the tightness of the spiral arms, where larger bulges are typically associated with more tightly wound arms.

In Spiral Galaxies,the Size of the Central Bulge Is Correlated